DSG双离合器变速箱里的离合器是湿式多片式还是干式单片 还是干式多片啊

2025-03-13 03:56:11
推荐回答(4个)
回答(1):

目前大众的DSG双离合变速箱有湿式多片式和干式多片式两种!就拿已经国产的大众车型来说,一汽大众迈腾1.8TSI和2.0TSI上采用的DSG变速箱是6档DSG双离合变速箱,型号为DQ250,该变速箱是美国的Borgwarner(博格华纳)为大众提供6速DSG双离合变速器的主要控制单元,该DSG变速箱的主要特点就是采用湿式多片式双离合器。而国内许多1.4TSI的车型,如一汽大众速腾1.4TSI、一汽大众迈腾1.4TSI、一汽大众新宝来1.4TSI、上海大众朗逸1.4TSI、上海大众斯柯达明锐1.4TSI、上海大众斯柯达明锐1.4TSI、上海大众斯柯达昊锐1.4TSI和一汽大众高尔夫1.6L和1.4TSI都采用了等车采用的DSG变速箱是7档DSG双离合变速箱,型号为DQ200,该变速箱是由德国本土的LuK公司提供核心技术,大部分组件都是在位于德国卡塞尔(Kassel)的大众工厂里完成组装生产的,该DSG变速箱的主要特点就是采用干式多片式双离合器。相较于DQ200干式双离合器通过离合器从动盘上的摩擦片来传递扭矩,湿式双离合器的扭矩传递是通过浸没在油中的湿式离合器摩擦片来实现的。由于节省了相关液力系统以及干式离合器本身所具有的传递扭矩的高效性,干式系统很大程度地提高了燃油经济性。德国大众的相关数据统计显示,同样是77KW的发动机,配备7挡DSG变速箱的要比6档湿式双离合器变速箱节省超过10%的燃油。干式双离合器除了传递效率更高外,7速DSG变速箱还省去了过滤器、油冷器以及变速箱壳体中的高压油管等零部件,与普通手动变速箱一样,变速箱油只用于变速箱齿轮和轴承的润滑和冷却。因而7挡DSG变速箱油仅需要1.7升变速箱油,而6挡DSG变速箱则需要6.5升。当然,湿式双离合器也具备干式离合器所缺乏的特点,因为传递扭矩载体和工作乃抗温度的限制,干式双离合器在扭矩传输上受到了明显的限制,代号为DQ200的7速DSG变速箱只能适用于最大扭矩小于250Nm的“中小型”发动机。以一汽大众迈腾1.8TSI为例子,在发动机1500转至4200转期间都能输出峰值为250NM的扭矩。很显然,7速DQ200双离合变速器并不合适。这也是一汽大众迈腾1.8TSI/2.0TSI为何放弃7速的DQ200,而采用6速DQ250双离合变速器的原因所在,此外因为布局和选用摩擦材料的因素,湿式双离合器的外形尺寸比干式双离合器要大,不利于整车动力总成的布置,相信这也是DQ200适用于中小排量车型的潜在原因之一。所以如果说6速与7速哪个好?其实并没有哪一方拥有绝对的优势,只是适合的发动机和车型不一而已。不过不管是湿式也好还是干式也好,DSG变速箱绝对是目前表现最优秀的变速箱,就拿一汽大众高尔夫来说DSG的自动版比手动版的车型在市区驾驶还省油!所以综合考虑动力性与燃油经济性的话,DQ250和DQ200都比其它的AT、AMT、CVT等现有的自动变速箱或半自动变速箱都具有很大的优势。
好了,说了那么多可能看起来比较麻烦吧,但是对于这个问题,两三句话是难以解释清楚的!所以希望能为你起到一定的参考作用。

回答(2):

有干式的也有湿式的,像迈腾上面用的就是湿式的,速腾、宝来、朗逸上面的就是干式的。

回答(3):

现在的DSG干式跟湿式都有

回答(4):

湿式多片

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